Mac mini M4 docking stand From ACASIS Tailored for Mac Mini M4/M4 Pro Built-in Fan Noise is about 52dB Supports 2 8TB M.2 SSD Expansion (16 TB Max) ( Supports many kinds of ssds (see pictures) Best for using any extra M.2 SSD and adding storage to your Mac for cheap. Dual 4K for Effortless Multi-tasking Max Bluetooth, Wi-Fi Interference Reduction A lot of ports ( see pictures) * THIS IS A 40 GBPs MODEL ( not 10 GBPs) * Works perfectly with thunderbolt 4 port on Macs Reason for Selling: I bought another Dock from Acasis and that is doing its job great. This one is an extra purchase. * Please do your research before contacting me. Let us save our time. Pin Packed ( unopened)